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Table 3 Relative risks of developing any symptom correlated to various risk factors.

From: Small risk of developing symptomatic tick-borne diseases following a tick bite in the Netherlands

 

Exposed individuals

Any symptom

Relative risk (95% CI)

P value

>24 h

30/193

8/30

3.10 (1.43 - 6.75)

0.0092*

Borrelia

43/190

7/43

1.60 (0.70 - 3.66)

0.2841

Rickettsia

41/190

6/41

1.36 (0.57 - 3.26)

0.5809

Ehrlichia

27/182

4/27

1.44 (0.52 - 3.97)

0.5059

Babesia

26/190

2/26

0.63 (0.16 - 2.54)

0.7439

Any infection

98/190

14/98

1.64 (0.72 - 3.73)

0.2625

  1. Relative risks were calculated by dividing incidence rates of exposed by incidence rates of unexposed participants. Confidence intervals and p-values were calculated using Fisher's exact test. P-values below 0.05 (*) were regarded as significant.